Psychopaths are characterized to not having morality and higher emotional control (due to the lack thereof) so it was probably really hard to notice for the parents. And he killed them. Not a spoiler but im 99% sure because its characteristic. That does NOT mean all socio or psychopaths are killers btw so please never stereotype anyone like that. Yuha just so happens to be one
Psychopaths are characterized to not having morality and higher emotional control (due to the lack thereof) so it was probably really hard to notice for the parents. And he killed them. Not a spoiler but im 99% sure because its characteristic. That does NOT mean all socio or psychopaths are killers btw so please never stereotype anyone like that. Yuha just so happens to be one